Can’t find your part?   Contact us:
+1-309-603-4777
Sears Parts Direct
Tips to find your model number
Orders

  • Keep track of the models you own in your profile

    Sign in or Register to view or add models

Schedule a repair
NEC
Office

Model # 3550 Official NEC sheet feeder plus printer

Here are the diagrams and repair parts for Official NEC 3550 sheet feeder plus printer, as well as links to manuals and error code tables, if available.

There are a couple of ways to find the part or diagram you need:

  • Click a diagram to see the parts shown on that diagram.
  • In the search box below, enter all or part of the part number or the part’s name.

Not all parts are shown on the diagrams—those parts are labeled NI, for “not illustrated”.

We encourage you to save the model to your profile, so it’s easy to access parts and manuals for your appliance whenever you log in.

For DIY troubleshooting advice and repair guides, visit our repair help section.

Model diagram and schematic

SEARCH WITHIN THIS MODEL

?

This is the number corresponding to the part on the diagram / schematic

Search
ALL PARTS
Showing 10 of 433 parts  |
Label, Rear Stay 136-756584-A
Label, rear stay

Part #136-756584-A

The manufacturer no longer makes this part, and there's no substitute part

Rear Cover 136-781216-A
#28

Sheet feeder -- model 4123 diagram

Rear cover

Part #136-781216-A

The manufacturer no longer makes this part, and there's no substitute part

Support (l) 136-761896-A
Support (l)

Part #136-761896-A

The manufacturer no longer makes this part, and there's no substitute part

Spring Switch 136-747978-A
#25

Unidirectional forms tractor -- model 4109 diagram

Spring switch

Part #136-747978-A

The manufacturer no longer makes this part, and there's no substitute part

Washer Piwa 2x15bf 805-610002-00
#202

Cut sheet guide -- model 410 diagram

Washer piwa 2x15bf

Part #805-610002-00

The manufacturer no longer makes this part, and there's no substitute part

Guide, Main (l) 136-745955-002-A
Guide, main (l)

Part #136-745955-002-A

The manufacturer no longer makes this part, and there's no substitute part

Gear 21 136-745931-A
Gear 21

Part #136-745931-A

The manufacturer no longer makes this part, and there's no substitute part

Rear Cover 136-745959-A
Rear cover

Part #136-745959-A

The manufacturer no longer makes this part, and there's no substitute part

Front Cover 136-768298-007-A
#29

Sheet feeder -- model 4123 diagram

Front cover

Part #136-768298-007-A

The manufacturer no longer makes this part, and there's no substitute part

Guide, Paper 136-745983-A
#24

Dual bin adapter -- model 4104 diagram

Guide, paper

Part #136-745983-A

The manufacturer no longer makes this part, and there's no substitute part

Repair guides for chest freezers

How to replace a freezer compressor start relay

How to replace a freezer compressor start relay

The compressor start relay starts the compressor. If the compressor won’t start, follow these steps to replace a defect…

Read more
Repair difficulty
Time required
 15 minutes or less
How to replace a freezer temperature control thermostat

How to replace a freezer temperature control thermostat

The cold control thermostat regulates the freezer temperature. A defective cold control thermostat can prevent the compr…

Read more
Repair difficulty
Time required
 15 minutes or less
How to replace a freezer lid gasket

How to replace a freezer lid gasket

The lid gasket prevents air and moisture from entering the freezer when the lid is closed. Follow these steps to replace…

Read more
Repair difficulty
Time required
 30 minutes or less

Effective articles & videos to help repair your office

Office and smart products articles | Sears PartsDirect

View all
How to enjoy all the online benefits we offer on our Sears PartsDirect website

How to enjoy all the online benefits we offer on our Sears PartsDirect website

Learn about all the convenient features on our Sears PartsDirect website that make your parts purchases easier.…

Read more
Top questions about Sears and Sears PartsDirect

Top questions about Sears and Sears PartsDirect

Get answers to frequently asked questions about Sears and Sears PartsDirect.…

Read more
What does the Amazon Fire Stick Lite do?

What does the Amazon Fire Stick Lite do?

Learn what the Amazon Fire Stick Lite video streaming device does.…

Read more

Parts & More